Home / 821,073,562.32-1,132,797,560.45-622,628,331.60

Finding the Fourth Proportional to 821,073,562.32, 1,132,797,560.45 and 622,628,331.60

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Solution

The fourth proportional to 821,073,562.32, 1,132,797,560.45 and 622,628,331.60 is: 859,011,771.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,073,562.32 : 1,132,797,560.45 = 622,628,331.60 : x
  2. Step 2: Convert to fraction form
    821,073,562.32/1,132,797,560.45 = 622,628,331.60/x
  3. Step 3: Cross multiply
    821,073,562.32x = 1,132,797,560.45 × 622,628,331.60
  4. Step 4: Simplify right side
    821,073,562.32x = 705,311,855,100,420,480
  5. Step 5: Solve for x
    x = 705,311,855,100,420,480/821,073,562.32
  6. Step 6: Final answer
    x = 859,011,771.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.